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Water Quality Monitoring Report
<br /> Forward Landfill
<br /> Monitoring points at the Austin Unit have been constructed to monitor the
<br /> groundwater/surface water at the facility as follows:
<br /> AUSTIN UNIT GROUNDWATER MONITORING NETWORK
<br /> MONITORING POINT MONITORING POINT I.D.
<br /> Groundwater Monitoring AMW-2
<br /> Well-Background
<br /> DMP Wells AMW-5R,AMW-6*,AMW-7,AMW-12
<br /> CAP/EMP Wells(Shallow) AMW-1,AMW-4,AMW-10,AMW-11,AMW-13,AMW-14,AMW-18,
<br /> AMW-19,AMW-215,AMW-22S,AMW-24SR,AMW-29S,AMW-30S,
<br /> AMW-31S,AMW-32S
<br /> CAP/EMP Wells(Deep) AMW-1313,AMW-18B,AMW-19BR AMW-21,AMW-22,AMW-24R,
<br /> AMW-25,AMW-26R,AMW-28,AMW-29,AMW-30,AMW-31,
<br /> AMW-32
<br /> Domestic Wells 7898-A,8106-A
<br /> Surface Water Stations ASW-1,ASW-2
<br /> Lysimeters FU-03,FU-04W,FU-04E, FU-05,FU-06, LY-POND-N,LY-POND-S
<br /> *-Misidentified as a DMP well,but recognized as a CAP/EMP well.
<br /> 1.2 Compliance Record
<br /> With the exception of Waste Management Unit (WMU)A, the Forward Landfill has been
<br /> operated as a Class II and Class III landfill since it opened in 1973. However, from 1979
<br /> to 1984, industrial wastes, consisting primarily of strontium and barium sludge, were
<br /> accepted at the landfill and placed in WMU A. In 1984,the DTSC determined that WMU
<br /> A should be closed as a Class I hazardous waste management unit. The final cap was
<br /> completed in 1989 (Kleinfelder 1999).
<br /> A hazardous waste facility post-closure permit ("the initial post-closure permit") was
<br /> issued for the Site on January 2, 1990. On February 25, 1994, Forward Landfill
<br /> requested that the DTSC modify the initial post-closure permit to reduce the number of
<br /> sampling events from eight per year (two quarterly) to four per year. DTSC approved
<br /> this request("Modification No. 1") in a letter dated March 2, 1994 (Kleinfelder 1999).
<br /> On November 4, 1994, a revised post-closure maintenance plan (RPCMP) was submitted
<br /> to the DTSC. The DTSC approved the RPCMP and issued Permit Modification No. 2. This
<br /> modification superceded all of the requirements of the initial post-closure permit and
<br /> Modification No. 1. The DTSC issued a revised Postclosure Permit on June 30, 2003.
<br /> Forward Landfill implemented the Corrective Action Program for the site, which was
<br /> based on a two-year proof period that began on June 7, 1995.
<br /> On June 15, 2016, DTSC issued the Final Hazardous Waste, Post Closure Facility Permit
<br /> for WMU-A. The permit requires preparation of an engineering feasibility study and
<br /> corrective actions to address inorganic concentration limit exceedances associated with
<br /> WMU-A.
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